HomeMy WebLinkAboutCROSS VIEW ESTATES BLK 2 LT 20Cross View Block 2 Lot 20 #015-301-66 Permit Number: Tax Code Number: Work Type: On-Site Water & Wastewater System Permit OSP121236 01530166000 WellSeptic MUNICIPALITY OF ANCHORAGE Development Services Department On-Site Water & Wastewater Program 4700 Elmore Read, PO Box 196650 Anchorage, AK 99519-6650 Telephone: (907) 343-7904 Initial Permit Effective Dates: August 17, 2012 to August 17, 2013 Design Engineer: ANDERSON ENGINEERING Subdivision: CROSS VIEW ESTATES Site Legal Address: CROSS VIEW ESTATES BLK 2 LT 20 G:2737 Owner/Address: ALDRICH STEVEN R 11303 QUEST CIRCLE ANCHORAGE AK 995150000 Site Mailing Address: Lot Size in Sq Ft: 49633 Total Bedrooms: 4 This permit is for the construction of: Y Disposal Field Y Septic Tank N Holding Tank N Privy Y Private Well N Water Storage All construction must be in accordance with: 1. The attached approved design. 2. All requirements specified in Anchorage Municipal code Chapters 15.55 and 15.65 and the State of Alaska Wastewater Disposal Regulations (18AAC72) and Drinking Water Regulations (16AAC80). 3. The wastewater code requires inspections during the installation. The engineer must notify the Development Services Department at least 2 hours prior to each inspection. Provide notification by calling (907) 343-7904 (24 hours). 4. From October 15 to April 15, a subsurface soil absorption system under construction dudng freezing weather must either: A. Open and Close on the same day. B. Covered, sealed, and heated to prevent freezing. Date: Date: ,' / MUNICIPALITY OF ANCHORAGE Community Development Department Development Services Division On-Site Water & Wastewater Program Mayor Dan Sullivan Phone:907-343-7904 Fax:907-343-7997 ON-SITE SEWERNVELL PERMIT APPLICATION FOR A SINGLE FAMILY DWELLING Parcel I.D. 015-301-66 Property owner(s): Steven and Ronica Aldrich Day phone: Mailing address: 11303 Quest Circle Anchorage, AK 99515 Site address: Heritage Heights Drive Anchorage, AK 99518 Legal description (Sub'd., Block & Lot): Cross View Estates, Block 2, Lot 20 Legal description (Township, Range & Section) Lot Size: 49,633 Sq. Ft. Number of Bedrooms: Four (4) THIS APPLICATION IS FOR: ([~ all that apply) Absorption Field X Septic Tank X Holding Tank [] Privy [] Private Well X Water Storage [] THIS APPLICATION IS AN: Initial X Upgrade [] Renewal [] THIS APPLICATION INCLUDES A VARIANCE /WAIVER REQUEST FOR: I certify that the above information is correct. I further certify that this application is being made for a Single Family Dwelling and is in accordance with applicable Municipal Codes. (Signature of property owner or authorized agent) Permit/Rush Fees: Date of Payment: Receipt Number: Permit No. Waiver Fees: Date of Payment: Receipt Number: Waiver No. C:tUsers~AndEng\Desktop\Mike~Cross View Estates\Permit Application Lot 20.docC:\Users~AndEng\Desktop~Mike~Cross View Est~es\Permit Application Lot 20.doc ANDERSON ENGINEERING P.O. BOX 240773 ANCHORAGE, AK 99524 522-7773 677-7766 (FAX) August2,2012 Municipality of Anchorage Development Services Department On-Site Water and Wastewater Program 4700 South Bragaw Street Anchorage, AK 99519-6650 Subject: Lot 20, Block 2, Cross View Estates Subdivision Septic System Design and Permit Application Impacts to Adjacent Properties Dear Onsite Services Engineer: The owner of Lot 20, Block 2, Cross View Estates Subdivision intends to construct a new four-bedroom home on the lot. We are therefore requesting a permit be issued for the construction of a new well and septic system to accommodate the home. The attached Site Plan and backup documentation identify the location and configuration of the proposed well and septic system along with the alternate site. Also identified on the plans are the existing wells in the area and septic systems on surrounding lots. No conflicts exist between the proposed septic system and well or septic systems and wells on adjacent lots. Drainage arrows are shown on the site plan showing the grade and direction of flow on the lot. The drainage pattern will not be changed as a result of this project. The test holes placed on the lot in the area of the absorption trenches and alternate site indicate silty sand with gravel (SM/ML). The percolation rate of the soil was determined to be 31-60 minutes per inch. No groundwater was found during the placement of the test holes and none was noted during the monitoring period. An application rate of .45 gallons per day per square foot was used in the design of the absorption system, We are proposing to place a new 1,250-gallon septic tank and 2-53' long by 3' wide by 7' effective depth absorption trenches to treat and dispose of the effluent generated in the house. The elevation of the distribution line in the absorption trench will be 4' below the surface and the total depth will be 11'. A flow splitter valve will be placed to insure even flow to each trench. A minimum of 3' of fill or 2" of insulation and 2' of fill will be placed over the absorption trench and 4' over the septic tank. The ground surface on the lot in the area of the septic system slopes to the west at a Lot 20, Block 2, Cross Point Estates Subdivision August 2, 2012 Page Two shallow grade with some cross sloping from the east. The new trenches will be constructed parallel with the contours of the slope as much as possible in conformance with Municipal requirements. The new septic system will be constructed a minimum of 100' from all wells and any surface water and 10' the proposed and existing water services in the area. If the system is constructed in accordance with our design the following statements apply: The system, if constructed as designed, will have no adverse impact on the wells in the area or those to be constructed in the future. The system, if constructed as designed, will have no adverse impact on existing septic systems in the area or those to be constructed in the future. The system, if constructed as designed, will have no adverse impact on reserve space, either surface or subsurface, on any lots located in the area. The system, if constructed as designed, will have no adverse impact on drainage patterns in the area. The current drainage pattern will be maintained. Sincerely, Michael E. Anderson, P.E. Attachments 'ON HON~ 0 ANS \ LOT 20, BLOCK 2, CROSS VIEW ESTATES DESIGN FACTORS: SYSTEM REQUIREMENTS: Four Bedroom Home DeepTrench System Perc. Rate: 31-60 Min./Inch 1,250 Gallon Septic Tank Application Rate: .45 GPDISF 7' Drainfield Rock 4 Bedrooms X 150 GPD/.45 GPD/SF (Application Rate) = 1,333.3 SF Absorption Area 1,333.3 SF114 SF/LF = 95.2 LF Trench Length THEREFORE: Construct 2-53' Long x 3' Wide x 7' Effective Depth Absorption Trenches at the Location Shown. Flow Line Elevation in Trench to be 4' Below Original Ground Surface. Total Depth to be 11' Below Existing Ground. Provide 4' Cover Over Septic Tank and 3' Cover Over Absorption Trench. Maintain 100' Separation from Wells in the Area. Natural Backfill \© Geotextile Fabric 4" Perforated PVC (Holes Down) Drainfield Rock TYPICAL DEEP TRENCH SECTION -- -- ---7~s~ ~...~...~....~. NOTE: Grade Area Over Trench to Drain Away. Minimum 6' Separation From Bedrock. ~....~".......,........' Minimum 4' Separation From Groundwater. Minimum 100' Separation From Wells in the Area. ~;~~ Minimum 100' Separation F~m Su~ace Water or Streams: %~ ~700 DEPTH (feet) 1 2 3 4 5 6 7 8 9 11 20 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK 99519-0650 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: PERFORMED FOR: DATE: 7/6/2OI2 PARCEL ID#: lOT 20, BLOCK 2~ CROSS VIEW ESTATES SUB. UNLIMITED HOMES PROJ*ECT No.: TECHNICIAN: OB/OG SILTY SAND WITH GRAVEL SM BOH @ 18' JKB SLOPE ~> ~x ............... ~ 97t'. .-'?" SITE PLAN SEE SiTE PLAN WAS GROUND WATER ENCOUNTERED? NO IF YES ~ WHAT DEPTH?.__ DEPTH OF WATER AFTER MONITORING: NONE DATE OF MON[TORING~ 7/31/2012 DEPTH TO DATE READING 3ROSS TINE NET TINE WATER NET DROF (HINUTES) (HINUTES) (iNCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: 7/6 1 3:36 5.25" 2 4:06 30 6.50" 1.25" 3 4:07 5.00" 4 4:37 30 5.75" 0.75" 5 4:38 4.25" 6 5:08 30 5.00" 0.75" PERCOLATION RATE: 40 .(MtN/INCH) PERC. HOLE DIA. 8" (INCHES) TEST RUN BETWEEN: 5 FT. and 6 FT. COMMENTS: TEST HOLE PRE SOAKED PRIOR TO TEST. TEST PERFORMED BY ANDERSON ENGINEERING. I, MICHAEL E. ANDERSON CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS DATE: 8/2/2012 4700 DEPTH (feet) 1 2-- 3 4 5 6 7-- 8 9 11 MUNICIPALITY OF ANCHORAGE DEVELOPMENT SERVICES DEPARTMENT BRAGAW STREET ANCHORAGE, AK 99519-6650 SOILS LOG - PERCOLATION TEST LEGAL DESCRIPTION: PERFORMED FOR: DATE: 7/6/2012 PARCEL ID#: EOT 20, BLOCK 2, CROSS VIEW ESTATES SUB. UNLIMITED INOMES PROJECT No.: TECHNICIAN: TEST HOLE 2 ] OB/OG SILTY SAND WITH GRAVEL SH BOH @ 18' JKB SLOPE SITE PLAN SEE SITE PLAN WAS GROUND WATER ENCOUNTERED? NO IF YES ~ WHAT DEPTH?.__ ~ -- DEPTH OF WATER AFTER MONITORING: NONE 5°/O _ DATE OF MONITORING' 7151/20[2 __~. -- DEPTH TO DATE READING GROSS TIME NET TIME WATER NET DROF (MINUTES) (MINUTES) (INCHES) (INCHES) TEST HOLE PRESOAKED PRIOR TO TESTING: ?/6 1 3:21 3.50" 2 3:51 30 4.00" 0.50" 3 3:52 3.00" 4 4:22 30 3.50" 0.50" 5 4:23 2.25" ! 6 4:53 30 2.75" 0.50" PERCOLATION RATE: 60 .(MIN/INCH) PERC. HOLE DIA. 8" (INCHES) TEST RUN BETWEEN: 5 FT. and 6 FT. COMMENTS: TEST HOLE PRE SOAKED PRIOR TO TEST. TEST PERFORMED BY ANDERSON ENGINEERING. 1, MICHAEL E. ANDERSON CERTIFY THAT THIS WAS PERFORMED IN ACCORDANCE WITH ALL STATE AND MUNICIPLE GUIDELINES IN EFFECT ON THIS DATE:. 8/2/2012.